US5507223A - Arrangement for coupling extended-nip rolls - Google Patents

Arrangement for coupling extended-nip rolls Download PDF

Info

Publication number
US5507223A
US5507223A US08/242,440 US24244094A US5507223A US 5507223 A US5507223 A US 5507223A US 24244094 A US24244094 A US 24244094A US 5507223 A US5507223 A US 5507223A
Authority
US
United States
Prior art keywords
coupling
tie members
bearing housings
construction
tie
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/242,440
Other languages
English (en)
Inventor
Oiva Vallius
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Paper Machinery Inc
Original Assignee
Valmet Paper Machinery Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valmet Paper Machinery Inc filed Critical Valmet Paper Machinery Inc
Assigned to VALMET PAPER MACHINERY INC. reassignment VALMET PAPER MACHINERY INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VALLIUS, OIVA
Application granted granted Critical
Publication of US5507223A publication Critical patent/US5507223A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/001—Wire-changing arrangements

Definitions

  • the present invention relates to a coupling construction for coupling press rolls forming a nip in which a large linear load exists, particularly an extended-nip, and a method for joining together a pair of rolls in a nip in which a large linear load exists, especially an extended-nip.
  • a press nip formed between a pair of extended-nip rolls typically consists of a pair of rolls such as SYM-ZL and SYM-BELT rolls.
  • a special feature of an extended-nip is the high linear load applied therein to dewater the web.
  • the maximum linear load is generally of an order of about 1200 kN/m.
  • a conventional screw coupling arrangement for the rolls is not possible, because, in order to overcome the linear load, roughly 130 screws per roll would be needed. This would be uneconomical in practice.
  • tie members are provided to join together and couple the bearing housings of the rolls in a nip in which a large linear load exists, particularly an extended-nip press.
  • the tie members are connected with the bearing-housing constructions so that, when the coupling is being uncoupled, the tie members can be pivoted into such a position that the uncoupled roll/mantle belt/bearing can be removed.
  • Each tie member is linked with one of the bearing housings.
  • the tie member is arranged to pivot in relation to the bearing housing and so that the end of the tie member is locked by means of a wedge effect with the respective bearing housing. Movement of the tie member takes place by means of a hydraulic cylinder or other suitable pivot means.
  • two tie members are employed at each roll end, and the coupling construction is symmetric in relation to the vertical central axis (Y axis) of the construction, which preferably aligns with axis passing through the center points of the press rolls in the extended-nip.
  • the coupling arrangement comprises an articulation point at each end of the tie member which permits the tie member to be operated as desired so that the tie member is linked in such a manner so as to be pivoted at either one of the bearing housings, either the upper or the lower bearing housing.
  • the coupling arrangement comprises an articulation point at each end of the tie member which permits the tie member to be operated as desired so that the tie member is linked in such a manner so as to be pivoted at either one of the bearing housings, either the upper or the lower bearing housing.
  • it is easy to replace the belt mantle around the extended-nip press roll by uncoupling the connection between the bearing housings of this roll and pivoting the tie members about an articulation point in connection with the bearing housing of the back-up roll.
  • the ultimate fixing of the tie member to the constructions of the bearing housing is carried out by means of screw members or equivalent fastening means.
  • the uncoupling of the tie member from the friction joint is carried out, in the first stage, by means of the unscrewing of screw members or unfastening the equivalent fastening means.
  • the shifting of the tie member itself apart from the bearing housing in operative engagement therewith takes place by means of a hydraulic cylinder.
  • the coupling construction in accordance with the invention is sufficiently simple and, yet, easily operable. Also, the coupling construction does not require a large amount of space and the nip forces do not have to be transferred to the frame constructions. In this case, an expensive and spacious outside frame system is not required providing additional savings.
  • the coupling construction of the invention is also well suitable for modernizations of existing extended-nips.
  • the coupling construction between the extended-nip press rolls comprises pivotally linked tie members by whose means the extended-nip press rolls have been connected together detachably by the intermediate of their bearing housings.
  • the tie member is connected with either one of the bearing housings, e.g., the upper one connected to the upper roll in the nip or the lower one connected to the lower roll in the extended-nip press.
  • the extended-nip press rolls are joined together by their ends by means of two tie members.
  • the tie members are placed symmetrically in relation to the vertical axis (Y axis) and can be selectively connected with either one of the bearing housings. As such, by means of the selective coupling, either the upper bearing housing or the lower bearing housing (and roll connected thereto) can be removed/serviced.
  • FIG. 1 is a side view of an extended-nip press arrangement of a paper machine/board machine.
  • FIG. 2 shows the extended-nip press arrangement viewed in the machine direction and partly in section.
  • FIG. 3A shows an extended-nip press arrangement in accordance with the invention with the rolls of the extended-nip press joined together at their respective bearing housings.
  • FIG. 3B shows the arrangement as shown in FIG. 3A viewed in the direction of the arrow K 1 in FIG. 3A.
  • FIG. 4A is an axonometric exploded view of the parts of the coupling construction between the rolls in the arrangement shown in FIGS. 3A and 3B.
  • FIG. 4B illustrates the engagement of the cylinder S with the middle frame 21a 2 and with the tie member 14a 2 .
  • FIG. 4C illustrates the engagement of the tie member 14a 2 with the frame R 2 by means of a screw, by means of which screw the tie member 14a 2 can also be detached from the engagement with the frame part R 2 .
  • FIG. 5A shows an operation stage of the device in accordance with the invention in which the lower roll can be serviced.
  • FIG. 5B shows a stage of the method in accordance with the invention in which the upper roll can be lifted off, for example, for servicing, the coupling means remaining in connection with the bearing housing of the lower roll.
  • FIG. 1 shows an extended-nip press arrangement of a paper machine.
  • a web W is passed into a nip N formed between a lower extended-nip press roll 11 and a back-up roll 10.
  • the web W is carried on a felt H into contact with a roll face 10' of the back-up roll 10 in the nip N.
  • FIG. 2 shows the rolls 10 and 11 of FIG. 1 viewed in the machine direction.
  • the extended nip between the rolls 10 and 11 is denoted in the figure by the reference arrow N.
  • the felt H and the web W carried thereon are passed through the nip N.
  • the roll 10 is a variable-crown back-up roll
  • the roll 11 is an extended-nip press roll that comprises loading means 12a 1 ,12a 2 . . .
  • the loading means 12a 1 ,12a 2 . . . preferably cylinder means mounted on the central axle 13, are arranged to act with a force upon a loading or glide shoe 12b.
  • the force is conveyed through a flexible closed glide-belt mantle F to the web W so as to remove water from the web.
  • the term web W refers to a paper or board web.
  • the lower extended-nip press roll 11 comprises a flexible closed glide-belt mantle F arranged to run along the face of the loading shoe, i.e., of the glide shoe 12b.
  • An oil medium is passed into the space between the glide shoe 12b and the closed glide-belt mantle F to constitute the lubrication medium.
  • the back-up roll 10 may be preferably a roll heated from inside by means of a heating medium, e.g., water, steam or oil, or from external sources, e.g., by means of induction or infrared heating.
  • the back-up roll 10 may also be a non-heated roll.
  • FIG. 3A shows a coupling construction in accordance with the invention in a position between the rolls in an extended-nip press.
  • a first bearing housing 13a 1 which is the upper bearing housing in the figure
  • the second bearing housing 13a 2 which is the lower bearing housing as shown in the figure
  • the respective upper and lower rolls mounted in the bearing housings 13a 1 ,13a 2 are interconnected by means of tie members 14a 1 and 14a 2 .
  • the bearing housings are interconnected by means of similar tie members 14a 1 and 14a 2 at both ends of the rolls.
  • FIG. 3B shows the coupling construction shown in FIG. 3A, viewed in the direction of the arrow K 1 in FIG. 3A.
  • FIG. 4A is an axonometric exploded view of the parts of the coupling construction in accordance with the invention.
  • the tie members 14a 1 , 14a 1 ' connected both ends of the rolls.
  • the fastening construction in accordance with the invention is symmetric in relation to the vertical axis (Y axis).
  • the coupling construction is also substantially symmetrical in relation to the second axis (X axis) perpendicular to the Y axis.
  • the first bearing housing which is the upper bearing housing 13a 1 as shown in FIG. 4A, includes a lifting bracket 15.
  • the lifting bracket 15 comprises a bracket part 15a 1 having a through hole 15a 2 therein which mates with the loop of the lifting device, and a plate part 15a 3 connected with the bracket part 15a 1 .
  • Plate part 15a 3 is attached to the frame R 1 of the bearing housing 13a 1 by means of screw means 16a 1 ,16a 2 , . . .
  • the screws 16a 1 ,16a 2 , . . . are passed through screw holes 15b 1 ,15b 2 , . . . into the frame R 1 and are threaded into the threaded holes in the frame.
  • the bearing housing 13a 1 comprises a lower fastening construction B 1 .
  • the fastening construction B 1 is symmetric in relation to the Y axis and comprises similar fastening-construction portions B 1 .1,B 1 .2.
  • the frame R 1 is preferably a cast construction.
  • the frame R 1 comprises a central opening M for the axle of the upper roll. In the figures, the bearing means on which the rolls revolve are not shown separately.
  • the frame comprises a side face C 1 and therein a plane surface T 1 . On the side face C 1 , there is a side projection 16 comprising a face C 2 .
  • the face planes T 1 and T 2 of the faces C 1 and C 2 are preferably parallel to one another, and are connected by a coupling face C 3 arranged inclined in relation to the planes C 1 ,C 2 .
  • the side face C 1 comprises a screw hole 17a 1 and, in a corresponding manner, the face C 2 comprises screw holes 17a 2 ,17a 3 .
  • the face C 1 further comprises a bracket 30a 1 ,30a 2 having aligning shaft holes D 1 ,D 2 arranged therein.
  • the frame R 1 further comprises coupling means B 1 .3,B 1 .4 which are similar to one another and which are placed at both sides of the Y axis.
  • the coupling means B 1 .3 comprise a plane face T 4 and therein a projection edge 18 which comprises screw holes 19a 1 ,19a 2 as well as a keyway 20 in the bottom face.
  • the coupling construction comprises hollow middle frames 21a 1 ,21a 2 , which are constructions similar to one another.
  • the middle frame 21a 1 comprises an upper wall 22a 1 , a lower wall 22a 2 , and side walls 22a 3 ,22a 4 which interconnect the upper and the lower walls perpendicularly and which comprise holes 23a 1 ,23a 2 for the shaft of the pivot cylinder S so that the cylinder S pivots about the shaft inserted through the holes 23a 1 ,23a 2 .
  • Between the side walls 22a 3 ,22a 4 there are side walls 24a 1 ,24a 2 between the upper and the lower walls 22a 1 ,22a 2 .
  • the side walls 24a 1 ,24a 2 comprise respective openings 25a 1 ,25a 2 (of which only opening 25a 1 can be seen in the figure).
  • the walls mentioned above define a hollow space E in the interior space between them.
  • a hydraulic cylinder is arranged partly in the space by its cylinder frame so that the shaft connected with the cylinder frame is connected and linked pivotally in the axle holes 23a 1 ,23a 2 .
  • the upper and the lower walls 22a 1 ,22a 2 project by their ends from the side walls, and their projection portions comprise screw holes 26a 1 ,26a 2 , . . . and grooves 26a 5 ,26a 6 , . . . for the screws.
  • the upper wall 22a 1 comprises a plane face T 5 and therein a keyway 27a 1 and, correspondingly, the lower wall part 22a 2 comprises a plane face T 6 and therein a keyway 27a 2 .
  • the screws or other fastening means which connect the middle frame 21a 1 ,21a 2 to its bearing housings are not shown separately.
  • the arrangement further comprises adapter pieces 28a 1 ,28a 2 , which are construction parts similar to one another.
  • the adapter piece 28a 1 comprises an upper planar face T 7 and a lower planar face T 8 and keyways 29a 1 ,29a 2 in the planar faces, respectively.
  • the adapter piece comprises grooves 30a 1 , . . . ,30a 4 for receiving the fastening means, e.g., screws.
  • the lower, second bearing housing 13a 2 comprises a frame R 2 , preferably a cast frame, and therein a central hole M 2 through which the axle of the lower roll is positioned.
  • the bearing housing 13a 2 comprises upper fastening means B 2 .1,B 2 .2 which are constructions substantially similar to one another and which correspond to the fastening and coupling means B 1 .1,B 1 .2 of the upper bearing housing 13a 1 . Thus, they are constructions symmetric in relation to the central axis Y.
  • the fastening means in the lower bearing housing 13a 2 comprise a first face C 1 , a second face C 2 which has been raised in relation to the first face C 1 , and between the first and second faces, a third face C 3 which is a coupling face.
  • the face C 3 is preferably an inclined face.
  • a fourth face C 4 comprises a groove 300 for a bracket, and a hole 31 in the frame R 2 , whereby it is possible to pass a shaft 32 through the hole 31 and through a corresponding hole provided in the fastening bracket of the tie member which is placed in the groove 300 for the bracket.
  • the uppermost fastening portion B 2 .3,B 2 .4 of the upper fastening means B 2 .1,B 2 .2 are constructions similar to one another and similar to the fastenings B 1 .3 and B 1 .4 of the upper bearing housing.
  • the lower bearing housing comprises lower fastening means B 1 .5 and B 1 .6 which are similar to one another.
  • the lower fastening means B 1 .5 and B 1 .6 comprise a plate 33b and grooves 33a 1 , . . . ,33a 4 arranged therein for screws which enable the entire coupling construction to be fixed to a machine foundation P.
  • Each tie member 14a 1 ,14a 2 comprises a middle frame 34a 1 and side frames 34a 2 ,34a 3 at both ends of the middle frame 34a 1 .
  • the longitudinal axes of the side frames 34a 2 ,34a 3 are substantially perpendicular to the longitudinal axis Z 1 of the middle frame.
  • the tie members 14a 1 ,14a 2 are elongate and symmetrically arranged in relation to the central axis X', i.e., the longitudinal axis.
  • Each tie member comprises an articulation point N 1 ,N 2 at its ends, in which case the tie member can be connected optionally with either one of the bearing housings.
  • a bracket 35a 1 ,35a 2 is arranged at each end of the middle frame 34a 1 .
  • the bracket 35a 1 includes a hole 36 through which the shaft 37 can be passed in order to couple the tie member with one of the bearing housings via an articulated joint.
  • the other end of the tie member comprises a similar bracket construction 35a 2 by whose means the tie member can be coupled optionally, via an articulated joint, with the other bearing housing.
  • the tie member 14a 1 , 14a 2 comprises a handle, by whose means the tie member can be displaced by making use of an outside device.
  • the middle frame 34a 1 of the tie member comprises a rectangular, central opening 38 passing through the middle frame.
  • Brackets 39a 1 ,39a 2 are arranged at respective sides of the opening 38.
  • the brackets 39a 1 ,39a 2 comprise through holes 40a 1 ,40a 2 for a shaft to pass therethrough, whereby a pivot cylinder S can be coupled with the tie member by the end of the piston rod.
  • the opening 38 is large enough to enable the cylinder S to pivot freely therein about the shaft inserted through the holes 40a 1 ,40a 2 upon movement of the tie members 14a 1 ,14a 2 .
  • a wedge piece 41 composed of tin bronze is arranged against the side frames 34a 2 ,34a 3 .
  • the wedge piece has a coupling face D' which is preferably a cylindrical face having a curve radius r.
  • the middle frame 34a 1 further comprises screw holes 42a 1 ,42a 2 and 42a 3 arranged on respective sides of the opening 38. Tightening screws 43a 1 ,43a 2 are passed through the holes 42a 1 and 42a 2 , and a detaching and tightening screw 43a 3 is passed through the hole 42a 3 .
  • FIG. 4B is an illustration on an enlarged scale of the engagement of the tie member 14a 1 with the cylinder device S which serves to actuate the coupling construction.
  • the cylinder S which is preferably a hydraulic cylinder, is coupled by its cylinder frame S' with the middle frame 21a 1 .
  • the middle frames 21a 1 and 21a 2 can be coupled by separate screw means (not shown) both with the upper bearing housing 13a 1 and with the lower bearing housing 13a2.
  • the coupling mentioned above also permits that the tie members 14a 1 ,14a 2 can be coupled operationally either with the upper bearing housing or with the lower bearing housing.
  • FIG. 4C shows the engagement of the tie member 14a 2 with the frame R 2 by means of the screw 43a 3 .
  • the screw 43a 3 is passed through the screw hole 42a 3 placed in the tie member 14a 2 into a threaded hole 101 in the frame R 2 .
  • the screw 43a 3 comprises a flange 102.
  • the tie member 14a 2 comprises a recess 105 in one of its faces and the flange 102 of the screw 43a 3 is placed in this recess.
  • the screw 43a 3 When the member 14a 3 is detached from the engagement with the frame R 2 , the screw 43a 3 is threaded in the opposite direction. In this manner, the flange 102 of the screw 43a 3 , after it has been turned so that it presses against the lower face of the plate part 103, lifts the tie member 14a 2 apart from the frame R 2 .
  • the plate part 103 is fixed to the member 14a 2 by means of screws 104 or other fastening means.
  • FIG. 5A shows another embodiment of the present invention in an operational stage in which the tie members 14a 1 ,14a 2 are linked pivotally with the upper bearing housing and the tie members 14a 1 ,14a 2 are kept by means of the cylinder device S in a so-called open position.
  • the lower roll and the lower bearing housing can be conditioned/detached upon release of the screws 43a 2 from the frame R 2 while the tie members 14a 1 ,14a 2 pivot about the articulation point N 1 and remain connected to the upper bearing housing.
  • FIG. 5B shows a coupling construction in accordance with the invention in a mode of operation in which the tie members 14a 1 ,14a 2 are linked pivotally with the lower bearing housing and the tie members are kept in a so-called open position by means of the cylinder device S.
  • the tie members are brought close to the bearing housing to be coupled, and the ultimate fixing and pressing of the tie member against its back-up face takes place by means of separate screw means.

Landscapes

  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
US08/242,440 1994-02-04 1994-05-13 Arrangement for coupling extended-nip rolls Expired - Fee Related US5507223A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI940522A FI101633B (fi) 1994-02-04 1994-02-04 Pitkänippitelojen välinen kytkentärakenne ja menetelmä pitkänippiteloj en yhteenliittämisessä
FI940522 1994-02-04

Publications (1)

Publication Number Publication Date
US5507223A true US5507223A (en) 1996-04-16

Family

ID=8539927

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/242,440 Expired - Fee Related US5507223A (en) 1994-02-04 1994-05-13 Arrangement for coupling extended-nip rolls

Country Status (7)

Country Link
US (1) US5507223A (de)
EP (1) EP0666367B1 (de)
JP (1) JPH07216775A (de)
AT (1) ATE173775T1 (de)
CA (1) CA2123723C (de)
DE (1) DE69414819T2 (de)
FI (1) FI101633B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5670022A (en) * 1995-09-27 1997-09-23 Valmet-Karlstad Ab Top roll lifting arrangement for a press in a papermaking or boardmaking machine
US5693186A (en) * 1995-02-10 1997-12-02 Valmet Corporation Method and apparatus for interconnecting rolls in an extended-nip press
US5788997A (en) * 1995-06-16 1998-08-04 Interko, Inc. Stress-free multiroller dough sheeting system
US5850785A (en) * 1996-06-05 1998-12-22 Valmet Corporation Coupling construction between an extended-nip roll and a backup roll
US5865112A (en) * 1994-05-20 1999-02-02 Voith Sulzer Papiermaschinen Gmbh Extended nip press
US6248210B1 (en) 1998-11-13 2001-06-19 Fort James Corporation Method for maximizing water removal in a press nip
US20040168585A1 (en) * 2001-07-05 2004-09-02 Erkki Aho Coupling construction and method for joining and locking the rolls of extended-nip press
US20060086471A1 (en) * 2004-06-11 2006-04-27 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Apparatus for forming an extended nip

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19713285A1 (de) * 1997-03-29 1998-10-01 Voith Sulzer Papiermasch Gmbh Preßvorrichtung für eine Papiermaschine
DE19741425B4 (de) * 1997-09-19 2007-04-19 Voith Patent Gmbh Walzenpresse
CA2387114C (en) 1999-10-13 2008-04-08 Metso Paper, Inc. Calender and an arrangement for fastening rolls of a calender
AT412097B (de) * 2002-10-17 2004-09-27 Andritz Ag Maschf Pressvorrichtung
DE10249948A1 (de) * 2002-10-26 2004-05-13 Voith Paper Patent Gmbh Walzenanordnung
DE102005040722A1 (de) * 2005-08-27 2007-03-01 Voith Patent Gmbh Pressanordnung
DE102007005395A1 (de) * 2007-02-03 2008-08-07 Voith Patent Gmbh Pressanordnung
FI124735B (fi) * 2010-11-26 2014-12-31 Valmet Technologies Inc Liitosjärjestely
DE202013101056U1 (de) * 2012-03-16 2013-03-18 Metso Paper, Inc. Verbindungsanordnung zwischen Lagergehäusen von Walzen einer Faserbahnmaschine
CN103072273B (zh) * 2012-12-24 2015-03-25 杭州珂瑞特机械制造有限公司 多层夹筋无纺布全能焊接设备连杆夹紧机构及压紧方法
CN103395203B (zh) * 2013-08-09 2016-01-20 衡阳新华华致橡塑制品有限公司 密封条在线贴绒方法及装置

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2277313A (en) * 1940-08-01 1942-03-24 Goodrich Co B F Change-roll calender
US2512648A (en) * 1945-05-05 1950-06-27 Beloit Iron Works Press roll assembly
US3049074A (en) * 1959-04-20 1962-08-14 Fulton Iron Works Co Mill housing
DE1961110A1 (de) * 1969-12-05 1971-06-24 Demag Ag Walzwerk mit einem mehrteiligen Walzenstaender
US3845708A (en) * 1972-05-04 1974-11-05 H Liebert Machine for compacting, pelletizing and/or briquetting
US3921514A (en) * 1973-02-08 1975-11-25 Escher Wyss Ltd Rolling mill
US4095448A (en) * 1976-02-20 1978-06-20 Schloeman-Siemag Aktiengesellschaft Roll housing of divided construction with removable housing cap
EP0107607A2 (de) * 1982-09-30 1984-05-02 Beloit Corporation Nasspresse mit verlängerter Presszone
US4790908A (en) * 1988-02-19 1988-12-13 Beloit Corporation Extended nip press belt guide and method
DE9103795U1 (de) * 1991-03-28 1992-04-23 J.M. Voith Gmbh, 7920 Heidenheim Walzenpresse
DE4219503A1 (de) * 1992-06-13 1993-12-16 Escher Wyss Gmbh Walzenanordnung
US5404811A (en) * 1991-12-11 1995-04-11 J. M. Voith Gmbh Roll press for the treatment of a traveling web with connection between the press units

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2277313A (en) * 1940-08-01 1942-03-24 Goodrich Co B F Change-roll calender
US2512648A (en) * 1945-05-05 1950-06-27 Beloit Iron Works Press roll assembly
US3049074A (en) * 1959-04-20 1962-08-14 Fulton Iron Works Co Mill housing
DE1961110A1 (de) * 1969-12-05 1971-06-24 Demag Ag Walzwerk mit einem mehrteiligen Walzenstaender
US3845708A (en) * 1972-05-04 1974-11-05 H Liebert Machine for compacting, pelletizing and/or briquetting
US3921514A (en) * 1973-02-08 1975-11-25 Escher Wyss Ltd Rolling mill
US4095448A (en) * 1976-02-20 1978-06-20 Schloeman-Siemag Aktiengesellschaft Roll housing of divided construction with removable housing cap
EP0107607A2 (de) * 1982-09-30 1984-05-02 Beloit Corporation Nasspresse mit verlängerter Presszone
US4790908A (en) * 1988-02-19 1988-12-13 Beloit Corporation Extended nip press belt guide and method
DE9103795U1 (de) * 1991-03-28 1992-04-23 J.M. Voith Gmbh, 7920 Heidenheim Walzenpresse
US5404811A (en) * 1991-12-11 1995-04-11 J. M. Voith Gmbh Roll press for the treatment of a traveling web with connection between the press units
DE4219503A1 (de) * 1992-06-13 1993-12-16 Escher Wyss Gmbh Walzenanordnung

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5865112A (en) * 1994-05-20 1999-02-02 Voith Sulzer Papiermaschinen Gmbh Extended nip press
US5693186A (en) * 1995-02-10 1997-12-02 Valmet Corporation Method and apparatus for interconnecting rolls in an extended-nip press
US5788997A (en) * 1995-06-16 1998-08-04 Interko, Inc. Stress-free multiroller dough sheeting system
US5670022A (en) * 1995-09-27 1997-09-23 Valmet-Karlstad Ab Top roll lifting arrangement for a press in a papermaking or boardmaking machine
US5850785A (en) * 1996-06-05 1998-12-22 Valmet Corporation Coupling construction between an extended-nip roll and a backup roll
US6517672B2 (en) 1998-11-13 2003-02-11 Fort James Corporation Method for maximizing water removal in a press nip
US6387217B1 (en) 1998-11-13 2002-05-14 Fort James Corporation Apparatus for maximizing water removal in a press nip
US6458248B1 (en) 1998-11-13 2002-10-01 Fort James Corporation Apparatus for maximizing water removal in a press nip
US6248210B1 (en) 1998-11-13 2001-06-19 Fort James Corporation Method for maximizing water removal in a press nip
US20030226650A1 (en) * 1998-11-13 2003-12-11 Fort James Corporation Method for maximizing water removal in a press nip
US6669821B2 (en) 1998-11-13 2003-12-30 Fort James Corporation Apparatus for maximizing water removal in a press nip
US20080035289A1 (en) * 1998-11-13 2008-02-14 Georgia-Pacific Consumer Products Lp Method for Maximizing Water Removal in a Press Nip
US7754049B2 (en) 1998-11-13 2010-07-13 Georgia-Pacific Consumer Products Lp Method for maximizing water removal in a press nip
US20040168585A1 (en) * 2001-07-05 2004-09-02 Erkki Aho Coupling construction and method for joining and locking the rolls of extended-nip press
US7383767B2 (en) * 2001-07-05 2008-06-10 Vaahto Oy Coupling construction and method for joining and locking the rolls of extended-nip press
US20060086471A1 (en) * 2004-06-11 2006-04-27 Eduard Kusters Maschinenfabrik Gmbh & Co. Kg Apparatus for forming an extended nip
US7416640B2 (en) * 2004-06-11 2008-08-26 Andritz Kusters Gmbh Apparatus for forming an extended nip

Also Published As

Publication number Publication date
CA2123723C (en) 1999-02-23
DE69414819T2 (de) 1999-05-12
ATE173775T1 (de) 1998-12-15
CA2123723A1 (en) 1995-08-05
JPH07216775A (ja) 1995-08-15
FI940522A (fi) 1995-08-05
DE69414819D1 (de) 1999-01-07
EP0666367B1 (de) 1998-11-25
EP0666367A1 (de) 1995-08-09
FI101633B1 (fi) 1998-07-31
FI101633B (fi) 1998-07-31
FI940522A0 (fi) 1994-02-04

Similar Documents

Publication Publication Date Title
US5507223A (en) Arrangement for coupling extended-nip rolls
US5975532A (en) Seal construction for a suction roll in a paper machine
CA2117215C (en) Method and apparatus for opening a nip in an extended-nip press
US5207872A (en) Prestressed press framework for a papermaking machine
US5693186A (en) Method and apparatus for interconnecting rolls in an extended-nip press
US5413036A (en) Roll press, specifically for the paper industry
KR100228925B1 (ko) 제지기계에서 이퀄라이징 프레스가 장치된 프레스부 및 프레스 방법
FI122439B (fi) Puristinlaite
JPS5966594A (ja) 広幅ニツププレス
DE68924559D1 (de) Presspartie mit Gestellaufbau für eine Papiermaschine.
US5846015A (en) Universal coupling
US4551205A (en) Press section without press suction rollers in a paper machine
US5850785A (en) Coupling construction between an extended-nip roll and a backup roll
US7383767B2 (en) Coupling construction and method for joining and locking the rolls of extended-nip press
US4922990A (en) Press section frame in a paper machine
JP2008190111A (ja) プレス装置
EP0287542B1 (de) Ständerkonstruktion für die Presspartie einer Papiermaschine
US5577441A (en) Pressing device for extracting liquid from a pulp web
US5744006A (en) Apparatus for dewatering mixtures of fibrous and liquid materials
GB2282846A (en) Paper roll fastening
EP1402190B1 (de) Kupplungskonstruktion und verfahren zur verbindung und verriegelung der walzen einer presse mit verlängerter presszone
FI953702A (fi) Laakeripesien välinen kytkentärakenne pitkänippipuristimessa
FI94651B (fi) Pitkänippipuristintelojen välinen kytkentärakenne
FI92502C (fi) Paperikoneen kompakti puristinosa
US5735198A (en) Roller bearing apparatus

Legal Events

Date Code Title Description
AS Assignment

Owner name: VALMET PAPER MACHINERY INC., FINLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VALLIUS, OIVA;REEL/FRAME:007001/0697

Effective date: 19940419

FPAY Fee payment

Year of fee payment: 4

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 8

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20080416